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Amazing images submitted in our 40th anniversary effort. Take a look!

The McCormick Bridgehouse & Chicago River Museum's gear room shows the motors and counterweights at work.

Riverprize is the world's foremost award in river basin management, bestowed by the Australia-based International River Foundation.

Dr. Reuben Keller, Elizabeth Berg warn of invasive species.

The annual Big Jump was part of this celebration of Friends' 40 years.

Historian Patrick McBriarty is the author of many Chicago history books, including "Chicago River Bridges."

Crain's Chicago Business asked us: What should the environmental priorities be for Chicago's new mayor?

Collecting seeds from native plants for redistribution thanks to funding from the National Environmental Education Foundation.

The reasons behind “a new renaissance in water quality" and some challenges ahead.

µÚÒ»³Ô¹Ï and the North River Commission, with the support of REI and the Chicago Park District, is hosting a series of walking, paddling, and in stream wading surveys of the Chicago River corridor between River Park and Gompers Park.